Sharp MX-4100N Service Manual page 124

The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed. The density level of each color must be almost at the
same level.
(Method 2)
Use SIM 67-25 to print the color balance adjustment sheet and
compare each process (CMY) black patch color balance and the
black patch to check the color balance.
Low density
2) Patch C or D of each of Y, C, M, and
BK is very slightly copied.
Patch A of each of Y, M, C, and
BK are not copied.
1) The max. density section is not blurred.
3) Patch for each of C, M, Y, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed.
The density level of each color must be almost at the same level.
Patch B may not be copied.
Patch A must not be copied.
If the color balance of each patch of the process black (CMY mixed
color) is slightly shifted to Magenta, it means that the adjustment is
proper. In an actual print mode, it is converted into the natural gray
color balance by the color table. (When the color balance target is
DEF 1.)
21-A
a. General
The color balance adjustment (auto adjustment) is used to adjust
the print density of each color (Cyan, Magenta, Yellow, Black) auto-
matically with SIM 67-24 or the user program.
(When this adjustment is executed, the color balance adjustments
of all the print modes are revised.)
There are following two modes in the auto color balance adjust-
ment.
1) Auto color balance adjustment by the serviceman (SIM 67-24
is used.)
2) Auto color balance adjustment by the user (The user program
mode is used.) (The color balance target is the service target.)
The auto color balance adjustment by the user is provided to
reduce the number of service calls.
If the print color balance is lost for some reasons, the user can
use this color balance adjustment to recover the balance.
When, however, the machine has a fatal problem or when the
machine condition is greatly changed, this function does not
work effectively.
On the other hand, the auto color balance adjustment by the
serviceman functions to recover the normal color balance
though the machine condition is greatly changed. If the
machine has a fatal problem, repair and adjust it for obtaining
the normal color balance.
High density
To perform the adjustment, the above difference must be fully
understood.
b. Note for execution of the color balance adjustment (Auto
adjustment)
1) The copy color balance adjustment must have been completed
properly.
2) Be sure to use the specified paper for color.
CMY
Blend
MX-5001N ADJUSTMENTS 5 – 82
Printer color balance adjustment (Auto
adjustment)